CN216720558U - Household intelligent safety photovoltaic grid-connected distribution box - Google Patents
Household intelligent safety photovoltaic grid-connected distribution box Download PDFInfo
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- CN216720558U CN216720558U CN202220206468.6U CN202220206468U CN216720558U CN 216720558 U CN216720558 U CN 216720558U CN 202220206468 U CN202220206468 U CN 202220206468U CN 216720558 U CN216720558 U CN 216720558U
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Abstract
The utility model discloses a household intelligent safety photovoltaic grid-connected distribution box, wherein a distribution module, a power supply module, an intelligent communication control module, an electrical fire detection module and a smoke detection module are arranged in the distribution box, and the intelligent communication control module, the electrical fire detection module and the smoke detection module are respectively and electrically connected with the power supply module; the electric fire detection module is used for detecting the residual current of each internal cable of the power distribution module and the temperature of each external cable; the smoke detection module is used for detecting the smoke condition in the distribution box; the intelligent communication control module is used for acquiring detection signals of the electric fire detection module and the smoke detection module and sending early warning signals to the remote control terminal. The distribution box greatly improves the electrical safety of household photovoltaic power generation on the grid-connected side, and reduces the operation and maintenance cost of household photovoltaic power generation.
Description
Technical Field
The utility model relates to the technical field of distribution box devices, in particular to a household intelligent safety photovoltaic grid-connected distribution box.
Background
The existing household photovoltaic grid-connected distribution box on the market at present is simple in distribution and basic protection such as overvoltage and undervoltage prevention and surge prevention of an automatic reclosing device, and the simple protection measures have certain potential safety hazards in terms of household photovoltaic grid-connected boxes lacking real-time professional operation and maintenance. Especially if the equipment appears out of specification operation in transportation process or installation, easily lead to inside wiring to appear not hard up, contact failure scheduling problem, lack real-time professional maintenance in addition, will have the risk of causing electric fire for a long time. In addition, parameters and fault information of the photovoltaic grid-connected inverter are acquired by the current photovoltaic power station, the photovoltaic grid-connected inverter is not covered, the photovoltaic grid-connected inverter and the photovoltaic grid-connected inverter are not installed together most of the time, meanwhile, due to the fact that users are scattered, operation and maintenance are not timely, the photovoltaic grid-connected box is not allowed to be opened easily, and therefore electrical safety of the photovoltaic grid-connected inverter is neglected easily.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides an intelligent safe photovoltaic grid-connected distribution box for a user.
The utility model adopts the following technical scheme:
a household intelligent safety photovoltaic grid-connected distribution box is characterized in that a distribution module, a power supply module, an intelligent communication control module, an electrical fire detection module and a smoke detection module are arranged in the distribution box, and the intelligent communication control module, the electrical fire detection module and the smoke detection module are respectively and electrically connected with the power supply module; the electric fire detection module is used for detecting the residual current of each internal cable of the power distribution module and the temperature of each external cable; the smoke detection module is used for detecting the smoke condition in the distribution box; the intelligent communication control module is used for acquiring detection signals of the electric fire detection module and the smoke detection module and sending early warning signals to the remote control terminal.
Furthermore, the intelligent communication control module is respectively electrically connected with the electric fire detection module and the smoke detection module.
Furthermore, the intelligent communication control module adopts an RS485 interface for communication.
Furthermore, the electric fire detection module consists of a plurality of temperature probes, a residual current sensor, a leakage protection switch and a door magnetic travel switch.
Further, the travel switch adopts a door magnetic travel switch.
Further, the temperature probe is used for detecting the temperature of each external cable of the power distribution module.
Further, the residual current sensor is used for residual current of each internal cable of the power distribution module.
Further, the smoke detection module adopts a smoke sensor.
Furthermore, the power distribution module is sequentially provided with a circuit breaker, a three-phase alternating current contactor KM2, a photovoltaic automatic reclosing device, a photovoltaic meter, a three-phase alternating current contactor KM1 and a three-phase isolating switch from the input end to the output end.
Further, another circuit breaker and a surge protector are connected in parallel to the photovoltaic automatic reclosing device.
After adopting the technical scheme, compared with the background technology, the utility model has the following advantages:
1. the electric fire detection module detects the residual current of each internal cable of the power distribution module in real time through the residual current sensor so as to find whether electric leakage exists in the power distribution box in time, and also detects the temperature of each external cable of the power distribution module in real time through the temperature probe so as to find poor contact caused by construction or aging, thereby eliminating the risk of cable heating caused by poor contact; in addition, the door magnetic travel switch has the door opening alarm function, so that economic loss and safety accidents caused by illegal invasion of the distribution box can be avoided;
2. the smoke detection module detects the smoke condition in the distribution box in real time through the smoke sensor and provides final basis for power-off protection;
3. the intelligent communication control module acquires detection signals of the electric fire detection module and the smoke detection module and sends corresponding early warning signals to the remote control terminal, so that a user or operation and maintenance personnel can receive early warning information in time, and response is fast;
4. the distribution box greatly improves the electrical safety of household photovoltaic power generation on the grid-connected side, and reduces the operation and maintenance cost of household photovoltaic power generation.
Drawings
Fig. 1 is a schematic diagram of a modular construction of the electrical distribution box of the present invention;
FIG. 2 is a schematic diagram of the circuit configuration of the distribution box of the present invention;
fig. 3 is an exemplary diagram of an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the apparatus or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.
Examples
As shown in fig. 1 and 2, a household intelligent safety photovoltaic grid-connected distribution box is provided with a distribution module, a power module, an intelligent communication control module, an electrical fire detection module and a smoke detection module, wherein the intelligent communication control module, the electrical fire detection module and the smoke detection module are respectively electrically connected with the power module; the electric fire detection module is used for detecting the residual current of each internal cable of the power distribution module and the temperature of each external cable; the smoke detection module is used for detecting the smoke condition in the distribution box; the intelligent communication control module is used for acquiring detection signals of the electric fire detection module and the smoke detection module and sending early warning signals to the remote control terminal.
The intelligent communication control module is electrically connected with the electric fire detection module and the smoke detection module respectively. The intelligent communication control module is communicated with the power distribution module, the electrical fire detection module and the smoke detection module through RS485 interfaces.
The electric fire detection module consists of a plurality of temperature probes, a residual current sensor, a leakage protection switch and a door magnetic travel switch. The temperature probe is used for detecting the temperature of each external cable of the power distribution module. The residual current sensor is used for residual current of each internal cable of the power distribution module.
The smoke detection module adopts a smoke sensor.
The power distribution module is sequentially provided with a circuit breaker, a three-phase alternating current contactor KM2, a photovoltaic automatic reclosing device, a photovoltaic meter, a three-phase alternating current contactor KM1 and a three-phase isolating switch from the input end to the output end. The photovoltaic automatic reclosing device is also connected with another breaker and a surge protector in parallel.
As shown in fig. 3, during use, the intelligent communication control module is used for collecting detection signals of the electric fire detection module and the smoke detection module, the intelligent communication control module can communicate with the remote control terminal through the 4G network and sends corresponding early warning signals to the remote control terminal, so that a user or operation and maintenance personnel can timely receive the early warning signals, and quick response is realized. For example: the intelligent communication control module carries out grading processing on accident events according to the detection signals, and the accident events are graded into primary early warning, important early warning, emergency early warning and the like. If only a small part of parameters are abnormal (for example, the door magnetic travel switch S1 is abnormal, and the residual current sensor CS1 or CS2 is slightly abnormal), the intelligent communication control module sends a primary early warning to the remote control terminal, and the remote control terminal can also send early warning information to users or operation and maintenance personnel by connecting the mobile terminal to remind the users to pay attention and investigate; if most parameters are abnormal (such as large abnormality of CS1 and CS2 or abnormal parameters of T1-T8), the intelligent communication control module sends an important alarm to the background, and the background informs a user or operation and maintenance personnel to perform investigation immediately through the mobile terminal; if most parameters are abnormal (the CS1 and the CS2 are large or the photovoltaic inverter input or grid-connected output T1-T8 parameters are abnormal) and smoke alarm is triggered (smoke sensor S2 signal trigger), the intelligent communication control module sends emergency early warning to the remote control terminal, the remote control terminal informs a user or operation and maintenance personnel to perform investigation immediately through the mobile terminal, and meanwhile, the commercial power connection is disconnected (the three-phase alternating current contactor KM1 is disconnected) and the photovoltaic inverter is controlled to stop generating power and disconnect the three-phase alternating current contactor KM2, so that further expansion of accidents is avoided. The early warning classification can be carried out according to the actual situation, and grade division and parameter setting can be carried out.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a family is with intelligent security photovoltaic grid-connected distribution box which characterized in that: a power distribution module, a power supply module, an intelligent communication control module, an electrical fire detection module and a smoke detection module which are respectively and electrically connected with the power supply module are arranged in the distribution box; the electric fire detection module is used for detecting the residual current of each internal cable of the power distribution module and the temperature of each external cable; the smoke detection module is used for detecting the smoke condition in the distribution box; the intelligent communication control module is used for acquiring detection signals of the electric fire detection module and the smoke detection module and sending early warning signals to the remote control terminal.
2. The household intelligent safety photovoltaic grid-connected distribution box according to claim 1, characterized in that: the intelligent communication control module is electrically connected with the electric fire detection module and the smoke detection module respectively.
3. The household intelligent safety photovoltaic grid-connected distribution box according to claim 2, characterized in that: and the intelligent communication control module adopts an RS485 interface for communication.
4. The household intelligent safety photovoltaic grid-connected distribution box according to claim 3, characterized in that: the electric fire detection module consists of a plurality of temperature probes, a residual current sensor, a leakage protection switch and a travel switch.
5. The household intelligent safety photovoltaic grid-connected distribution box according to claim 4, characterized in that: the travel switch adopts a door magnetic travel switch.
6. The household intelligent safety photovoltaic grid-connected distribution box according to claim 4, characterized in that: the temperature probe is used for detecting the temperature of each external cable of the power distribution module.
7. The household intelligent safety photovoltaic grid-connected distribution box according to claim 6, characterized in that: the residual current sensor is used for residual current of each internal cable of the power distribution module.
8. The household intelligent safety photovoltaic grid-connected distribution box according to claim 3, characterized in that: the smoke detection module adopts a smoke sensor.
9. The household intelligent safety photovoltaic grid-connected distribution box according to claim 1, characterized in that: the power distribution module is sequentially provided with a circuit breaker, a three-phase alternating current contactor KM2, a photovoltaic automatic reclosing device, a photovoltaic meter, a three-phase alternating current contactor KM1 and a three-phase isolating switch from the input end to the output end.
10. The household intelligent safety photovoltaic grid-connected distribution box according to claim 9, characterized in that: the photovoltaic automatic reclosing device is also connected with another breaker and a surge protector in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220206468.6U CN216720558U (en) | 2022-01-25 | 2022-01-25 | Household intelligent safety photovoltaic grid-connected distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220206468.6U CN216720558U (en) | 2022-01-25 | 2022-01-25 | Household intelligent safety photovoltaic grid-connected distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216720558U true CN216720558U (en) | 2022-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220206468.6U Active CN216720558U (en) | 2022-01-25 | 2022-01-25 | Household intelligent safety photovoltaic grid-connected distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216720558U (en) |
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2022
- 2022-01-25 CN CN202220206468.6U patent/CN216720558U/en active Active
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